التفاصيل البيبلوغرافية
| العنوان: |
Electronic spectrum of the protonated diacetylene cation (H2C4H+). |
| المؤلفون: |
Catani, Katherine J.1, Muller, Giel1, Jusko, Pavol2,3, Theulé, Patrice3, Bieske, Evan J.1 evanjb@unimelb.edu.au, Jouvet, Christophe3 christophe.jouvet@univ-amu.fr |
| المصدر: |
Journal of Chemical Physics. 2017, Vol. 147 Issue 8, p1-5. 5p. 2 Diagrams, 2 Charts, 2 Graphs. |
| مصطلحات موضوعية: |
*ELECTRONIC spectra, *BUTADIYNE, *PHOTODISSOCIATION, *TANDEM mass spectrometry, *VIBRONIC coupling |
| مستخلص: |
The ˜B1A1 ← ˜X1A1 electronic band system of the protonated diacetylene cation (H2C4H+) is measured over the 230-295 nm range by photodissociating H2C4H+ ions stored in a cryogenic ion trap and by photodissociating H2C4H+ tagged with Ar and N2 in a tandem mass spectrometer. The ˜B1A1 ← ˜X1A1 band system has an origin at 34 941 cm-1 for H2C4H+, 34 934 cm-1 for H2C4H+-Ar, and 34 920 cm-1 for H2C4H+-N2. The spectra of H2C4H+, H2C4H+-Ar, and H2C4H+-N2 display similar vibronic structure, which is assigned using ab initio calculations to progressions in two symmetric a1 C-C stretch vibrational modes (ν6 and ν4), with band spacings of 860 and 1481 cm-1, respectively. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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